Hot-water tank



Nov. 4, 1 930.

G. F. SCHWARTZ 1,780,316

HOT WATER TANK Filed Feb. 10, 1928 Suoamtoz Patented Nov. 4, 1930 UNITED STATES GERHARDT F. SCHWARTZ, OF ST. LOUIS, MISSOURI HOT-WATER TANK Application filed February 10, 1928. Serial No. 253,334.

This invention relates to hot water tanks, and more particularly to the tanks of storage water heaters and has for its primary object and purpose to provide means for concentrating and intensifying the heat effects of the burner flame upon the heat absorbing walls of the tank.

It is also another object of the invention to provide a tank for water heaters having a central flue through which the heated'air rises and meansassociated with said flue for narrowing the heat stream and concentrating the heated gases against the heat absorbing surface of the flue.

It is another object of my invention to provide a simply constructed means for attaining the above purpose which will be efficient in its operation and which will not materially add to the present manufacturing cost of such hot water tanks.

With the above and other objects in view, the invention consists in the improved hot water tank. and in the form, construction and relative arrangement of its several parts as will be hereinafter more fully described, illustrated in the accompanying drawing, and subsequently incorporated in the subjoined claim.

In the drawing, wherein I have illustrated several simple and practical embodiments of the invention, and in which similar reference characters designate corresponding parts throughout the several views, I have shown a vertical sectional view, through a hot water tank illustrating one practical embodiment of my present improvements.

In the drawing, I have illustrated one prac tical embodiment of the invention in which I provide a lower flue section 14 of relatively 4 large diameter having a top wall 15 joined to the wall of the central flue 8 by means of a suitable water tight seal at a point in spaced relation to the lower end of said central flue. In this construction, the lower end of the flue 8 is closed as shown at16 and to this lower end portion of the flue within the section 14 a cylindrical deflecting member 17 of refractory material or sheetsteel is secured, the outer cylindrical surface of said member 17 being located closely adjacent to the wall of the flue section 1 1 to provide the narrow annular passage 18. Preferably the lower and upper end faces of the member 17 are reversely inclined asshown at 19 'andQO re spectively, and above the upper face 20 of said member and below the top 15 of the flue section 14, a plurality of openings indicated at 21 are provided in the wall of; the flue 8', thus affording communication between the interior of said flue and the upper end of the fine section 141. Preferably the lower end of the vertical wall of the flue section 14 is outwardly and downwardly flanged as at 22 and suitably joined to the lower end of the wall of the tank 5. V

In the operation of the device, it will be understood that the heated air and gases risingfrom the burner are directed by the lower inclined faces 19 of the member 17 upwardly through the narrow annular surface 18, and

are thereby concentrated against the vertically extending wall of the flue section 14. The heated gases after passing above the member 17, find egress from section 14: through the openings 21 and pass out through the upper end of the flue 8.

From the foregoing description considered in connection with the accompanying drawing, it will be seen that I have devised a very simple and practical construction of storage hot water tank whereby the heating of the water contained therein to a high temperature will be greatly expedited, with a consequent appreciable economy in the consumption of fuel. The embodiment of the device as herein described will be very eflicient for the intended purpose and in view of its simple form and construction, will not add materially to the manufacturing cost of such hot water tanks.- While I have herein described and shown one practical embodiment of my present improvements, it is also to be understood that the essential features thereof may be embodied in various other alternative structural forms, and I accordingly reserve the privilege of resorting to all such legitimate changes therein as may be fairly embodied within the spirit and scope of the invention as claimed.

I claim:

A tank for storage Water heaters having a central flue for the heated air and gases extending therethrough and closed at its lower end, a flue section of relatively large diann eter surrounding the lower end portion of said central flue and having a top Wall closing the upper end thereof, the lower end of said flue section being open to receive the heated air and gases, a cylindrical deflecting member fixed to the lower end portion of the central flue within saidenlarged flue section and having a cylindrical surface adjacent to the Vertical Wall of said flue sectiona toprovide a narrow annular passage therebetween for the air and gases, and the Wall of said central flue between the upper end of said deflecting member and the top Wall of said enlarged flue section having a plurality of openings therein for the passage of the gases from said enlarged flue section into the central flue.

In testimony that I claim the foregoing as my invention, I have signed my name hereto.

GERHARDT F. SCHWARTZ. 

